Clarification on inline direction

[xfq]

https://www.w3.org/TR/rdf12-concepts/

While rdf:dirLangString handles the base direction, the specification should clarify how inline directional changes within a plain literal string should be handled, probably as a note, like this:

While rdf:dirLangString specifies the base direction for the entire literal, inline directional changes within the string value (e.g., embedding text of opposite directionality) can be managed using Unicode bidirectional control characters. These control characters isolate parts of the text to ensure correct rendering under the Unicode Bidirectional Algorithm.

Markup-based approaches (e.g., using HTML <bdi> or <span dir="..."> elements) are not applicable to plain literals like rdf:dirLangString, as they are intended for structured formats such as rdf:HTML. Instead, rely on Unicode controls for bidi support in plain text strings.

For more details, see:

• Unicode Bidirectional Algorithm basics
• Unicode controls vs. markup for bidi support
• How to use Unicode controls for bidi text